Turkey, EU, Turkey and the EU.
For centuries (before the advent of the aeroplane) you to came to Europe, either by boat, or thru Russia, or thru Turkey crossing the Bosphorus (700 metres at it’s narrowest point) with a little boattie . If you left Europe the same applied of course. This being a bit of a laboured introduction to the fact that Turkey and Europe are neighbours. And have been for a long time (duh ?!).
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more to come, this being a teaser (and an self-incentor) …
:-)